Light Energy Transduction in the Purple Membrane of Halobacterium Halobium

盐杆菌紫色膜中的光能转导

• 批准号: 8815824
• 负责人: Thomas Ebrey
• 金额: $ 26.82万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-03-15 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8815824&HistoricalAwards=false
• 关键词: Light; Energy; Transduction; Purple; Membrane

Dr. Ebrey is studying light energy transduction in the purple membrane of Halobacterium halobium. A variety of physical techniques will be used to investigate its only pigment, bacteriorhodopsin (BR) and its photocycle intermediates. The purple membrane is a particularly simple biological light-energy transducer. A great deal is known about the structure of both BR and the purple membrane. A broad attack on the problem of how light causes the pumping of protons across the cell membrane is planned. The key to this problem is to understand the interrelationships between the structure of both the chromophore and the protein part of bacteriorhodopsin, the photochemistry that occurs when the chromophore absorbs a photon and the movement of protons across the cell membrane. The well-defined nature of the problem of relating proton pumping activity, the photochemistry of the purple membrane and the structure of BR make it an extremely important area of study in biology today.***//

艾布里博士正在研究紫色的光能转换 盐生盐杆菌（Halobacterium halobium）膜。 各种物理 技术将被用来研究它唯一的色素， 细菌视紫红质（BR）及其光循环中间体。 紫膜是一种特别简单的生物 光能转换器 很多人都知道 BR和紫膜的结构。 广泛的攻击 光是如何导致质子泵出的 穿过细胞膜。 这个问题的关键 是了解结构之间的相互关系 的发色团和蛋白质部分 细菌视紫红质，即当细菌视紫红质 发色团吸收光子和质子的运动 穿过细胞膜 定义明确的 质子泵活性的问题， 紫膜光化学与BR结构 使其成为生物学中一个极其重要的研究领域 今天 **//